%0 Journal Article %A Heartsilver, Maggie Heartsilver %D 2021 %J Journal of Controversial Ideas %@ 2694-5991 %V 1 %N 1 %P 9 %T Deflating Byrne’s “Are Women Adult Human Females?” %M doi:10.35995/jci01010009 %U https://www.journalofcontroversialideas.org/article/1/1/129 %X The primary aim of this paper is to show that Alex Byrne’s arguments in “Are Women Adult Human Females?” provide no reason to doubt the truth of the proposition that trans women are women. Byrne’s conclusion is that women are adult human females. However, it is safe to say that much of the interest in his article is driven by the assumption that it is a short step from that conclusion to the further conclusion that trans women are not women. If Byrne is understood to be defending that further conclusion, however, then some of his arguments are dialectically ineffective. The others commit an evidential fallacy or rest on a false premise.